For a Tacoma to have a 6500# tow rating it should have a towing package and "all the ducks in a row". Your trailer is more than 8 feet wide and you will need extension mirrors, as well as a good brake controller. The problem with pushing the tow rating is that it leaves you with little cargo carrying capacity, because you shouldn't exceed the combined
weight rating for your Tacoma. That rating includes truck plus trailer plus passengers and all cargo, both in the truck and trailer. If you can't get that figure (Gross Combined
Weight Rating) from the owners manual, you might have to ask your Toyota dealer for it. If you can possibly swing it, you should get a full size truck like a Tundra, Ford, Chevy or Dodge for your
Bigfoot, IMHO.